<style type="text/css">
    .txt-box{background: #f8eddb;height: 100%;overflow-y:scroll;}
    .txt-box-in{margin:0 20px 20px;padding-top: 1px;}
</style>
<script>
    //视频类型
    videoType="${courseNode.videoType!}";
</script>
<div class="txt-box">
    <div class="txt-box-in">
        ${courseNode.content}
    </div>
</div>
